Methonac Tablet 10

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Composition

Acetylcysteine (600 Mg)

Methonac Tablet 10 is primarily used to manage respiratory tract conditions where there's an excess of thick mucus. This medicine is a part of the mucolytic agents category.

This tablet is also beneficial in acute conditions like laryngitis and bronchitis as well as chronic diseases such as emphysema, bronchiectasis, cystic fibrosis and chronic obstructive pulmonary disease (COPD). The medicine aids in reducing the thickness of the mucus, making it easier for your body to remove it from the respiratory tract.

Before you start taking this medicine, it's crucial to consult your doctor. They will guide you on the right dosage and frequency based on your specific medical condition. Make sure to inform them about any ongoing medication or existing conditions you have. If you experience any side effects while using this medicine, notify your doctor immediately. To see the desired results, continue taking the medicine for the duration prescribed by your doctor.

Methonac Tablet 10 is used for the following:

Helping manage respiratory tract conditions with excessive, thick mucus secretions.
Assisting in managing acute conditions like laryngitis and bronchitis.
Supporting the management of chronic diseases such as emphysema and bronchiectasis.
Aiding in the management of cystic fibrosis and chronic obstructive pulmonary disease (COPD).

Dissolve the prescribed dosage in a glass of water.
Consume the solution immediately once the tablet has completely dissolved.
You can take this medicine with or without food, as advised by your doctor.
Do not exceed the recommended dose without consulting your doctor.

Methonac Tablet 10 is taken orally.

Methonac Tablet 10 may have the following common side effects:

Diarrhoea
Vomiting
Headache
Dizziness
Chest discomfort
Rash
Dyspepsia: This technical term refers to indigestion, which might make you feel bloated or result in stomach discomfort.
Rhinorrhea: This is a symptom wherein you experience a continuous runny nose.

Managing the Side Effects:

Most side effects are temporary and generally harmless and resolve upon discontinuing the use of Methonac Tablet 10. However, if you experience any serious side effects or worsening of any of the symptoms, please consult your doctor.

Here are a few tips for managing common side effects:

Diarrhoea: Consider taking Methonac Tablet 10 with food to help manage this.
Dyspepsia: If indigestion occurs, it might be helpful to take this medicine after meals.

Methonac Tablet 10 contains acetylcysteine (600 mg) that works on your body in two primary ways:

Breaks down mucoproteins: Acetylcysteine acts directly on the disulfide bonds present in mucoproteins, causing their depolymerisation. This process reduces the viscosity of mucus in your lungs, making it easier to cough out the mucus.
Antioxidant Effect: Besides its role in breaking down mucoproteins, acetylcysteine also functions as a precursor for glutathione, an antioxidant. This helps counteract oxidative stress, which plays a role in chronic respiratory diseases.

Pregnancy

Caution is advised while taking Methonac Tablet 10 if you are pregnant. It is best to consult your doctor before taking this medicine.

Breastfeeding

There is a chance that small amounts of the medicine may pass into breast milk. However, harmful effects on the nursing infant are not expected. Still, it is advisable to discuss this with your doctor before taking Methonac Tablet 10 while breastfeeding.

Alcohol

There is no specific information regarding the interaction of Methonac Tablet 10 with alcohol. However, it's wise to consult your doctor about drinking alcohol while taking this medicine.

Liver

If you have liver problems, caution is recommended before starting Methonac Tablet 10. Discuss your liver health with your doctor, as this medicine undergoes metabolism in the liver.

Kidney

Patients with kidney health issues should exercise caution when taking Methonac Tablet 10. It is a good idea to consult your doctor before starting this medicine.

Using Machines & Driving

Methonac Tablet 10 might cause side effects like dizziness and headaches, which may affect your ability to drive or operate machinery. Be cautious and avoid such activities if you experience these symptoms.

Allergy

Methonac Tablet 10 is contraindicated if you are allergic to acetylcysteine or any other component of the tablet formulation. Make sure to discuss any known allergies with your doctor before starting this medicine.

Children

Methonac Tablet 10 should not be used in children below 2 years of age, as they may be unable to clear the loosened mucus secretions effectively. Always consult your doctor before giving any medicine to a child.

Older Patients

Older patients should take Methonac Tablet 10 under medical supervision, as they may be more susceptible to its side effects. Caution is advised if patients are above 70 years of age. Your doctor will guide you based on your health status.

Drug-Drug Interactions

Methonac Tablet 10 interacts with the following medicines:

Antitussive medication: Medicines like dextromethorphan or codeine may counteract the mucus-thinning action of Methonac Tablet 10, affecting its effectiveness.
Antibiotic medication: It's best to take oral antibiotics, such as amoxicillin or azithromycin, at least two hours before or after taking this tablet, to prevent interference with their absorption.
Vasodilatory medication: Medicines like nitrates can have their blood vessel-widening effects enhanced when taken with this tablet, potentially leading to low blood pressure.
Antiepileptic and bronchodilator medication: Carbamazepine levels may decrease, while theophylline levels may increase with concurrent use of this medicine. Regular monitoring of medication levels might be necessary.

Drug-Food Interactions

No specific food interactions have been reported with Methonac Tablet 10.

Drug-Disease Interactions

Methonac Tablet 10 interacts with the following diseases:

Peptic Ulcer: If you have a history of peptic ulcer, exercise caution as this tablet could potentially cause gastrointestinal side effects.
Asthma: Patients with severe asthma should be closely monitored for any occurrence of bronchospasms while using this medicine.

Daily Dose

Take the daily dose of Methonac Tablet 10 as prescribed by your doctor. The dosage might vary depending on factors such as the severity of your condition and your response to the medicine. Always adhere to the prescribed dosage and never change it without consulting your doctor. For further details regarding dosage, please read the package insert.

Over Dose

If you accidentally take more than the prescribed dose of Methonac Tablet 10, you might experience intensified side effects such as stomach upset and skin rash. If this happens, let your doctor know.

Missed Dose

If you forget to take your dose of Methonac Tablet 10, take it as soon as you remember. However, if it's almost time for your next dose, skip the missed one and continue with your regular schedule. Never double up on doses without consulting your doctor.

Keep Methonac Tablet 10 in a cool, dry place where the temperature stays below 25°C.
Ensure the container is tightly closed, protecting the tablet from moisture.
Keep this medicine out of sight and reach of children.
Always check the expiration date on the package and use it before that date.

If you have a respiratory condition, avoid exposure to allergens like dust and smoke, which can exacerbate mucus production.
A balanced diet rich in fruits, vegetables, and lean proteins can boost your overall immunity and help manage respiratory diseases better.

Fact Box

Available Dosage Types	Effervescent Tablet
Habit Forming	No
Ailment	Laryngitis, Bronchitis, and COPD
Drug Category	Antioxidant, Mucolytic Agent
Therapeutic Category	Respiratory Medicine

What is the main use of Methonac Tablet 10?

The tablet is used primarily to manage respiratory conditions associated with excessive, thick mucus.

How does Methonac Tablet 10 work in my body?

It works by thinning and loosening mucus in the airways, facilitating it's easier removal.

Can I take Methonac Tablet 10 if I have a peptic ulcer?

You should consult your doctor before taking this medicine if you have a history of peptic ulcer.

Are there any common side effects of Methonac Tablet 10?

Yes, common side effects include nausea, headache, and rash, although these are usually mild and temporary. Consult your doctor if these side effects persist.

Is it safe to take other medicines while using Methonac Tablet 10?

Methonac Tablet 10 might react with other medications, like antitussives like dextromethorphan or antibiotics like amoxicillin. Always share your medication history, if any with your doctor before starting any new medication.

Can pregnant women take Methonac Tablet 10?

The safety of this medicine in pregnancy has not been definitively established. Consult your doctor before starting this medicine if you are pregnant or planning to conceive.

What happens if I miss a dose of Methonac Tablet 10?

If you forget a dose, take it as soon as you remember,, unless it's close to your next scheduled dose.

Last Updated On 13 May. 2025 | 11:17AM (IST)

Certified Content

Written by

Dr. Michelle Frank

Medical Content Writer | 9 years

Doctor of Medicine

Reviewed by

Dr. Divya Chauhan

Medical Content Writer & Reviewer | 7 years

BAMS, APG, PG

Check out Editorial Policy

Manufacturer details

492, Pallavaram-Thuraipakkam Rd, Near JD Mahal, S. Kolathur, Viduthalai Nagar Extension, Kovilambakkam, Chennai, Tamil Nadu 600117

Country of origin: INDIA

Expiry on or after: April 2026

In case of any issues, contact us:

support@truemeds.in|09240250346

Address: 6th floor, Urmi Corporate Park Solaris, Saki Vihar Road, Andheri East, Mumbai 400071

References

Grandjean, E. M., Berthet, P., Ruffmann, R., & Leuenberger, P. (2014). Efficacy of oral long-term N-acetylcysteine in chronic bronchopulmonary disease: a meta-analysis of published double-blind, placebo-controlled clinical trials. Retrieved 1 April 2024, from https://pubmed.ncbi.nlm.nih.gov/24621680/
CETYLEV (acetylcysteine) effervescent tablets. (N.d.). Fda.Gov. Retrieved August 22, 2024, https://www.accessdata.fda.gov/drugsatfda_docs/label/2017/207916s003lbl.pdf
Acetylcysteine. (n.d.). Retrieved 27 June 2024, from https://go.drugbank.com/drugs/DB06151
N-Acetyl Cysteine (NAC). (n.d.). Medlineplus.Gov. Retrieved August 22, 2024, from https://medlineplus.gov/druginfo/natural/1018.html
Raghu, G., Berk, M., Campochiaro, P. A., Jaeschke, H., Marenzi, G., Richeldi, L., Wen, F.-Q., Nicoletti, F., & Calverley, P. M. A. (2021). The multifaceted therapeutic role of n-acetylcysteine (Nac) in disorders characterized by oxidative stress. Current Neuropharmacology, 19(8), 1202–1224. https://doi.org/10.2174/1570159X19666201230144109

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Disclaimer

We, at Truemeds make a diligent attempt to deliver accurate, expert- drafted and thoroughly reviewed medicine related information to our consumers. However, it should, by no means, be considered a substitute for prescription from a certified doctor or a trustworthy doctor-patient relationship. In fact we detest any form of self medication without expert advice. The sole purpose of the information on our portal is to educate our consumers, which helps improve the communication between a doctor and a patient. The information by no means is complete in its entirety and should not be used to diagnose or treat any medical condition. No amount of information can replace the experience and expertise of a doctor, therefore his/her advice always holds priority and should be followed appropriately.

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